Bitmap vs btree - how to tell? how to test?

From: Jack Silvey <jack_silvey_at_yahoo.com>
Date: Fri, 24 May 2002 09:44:11 -0800
Message-ID: <F001.0046B0AB.20020524094411@fatcity.com>

Listers,

We are creating indexes on a 300m row fact table today. I am researching bitmap versus btree (again) to see where the latest info points.

Anyone care to comment on the way to determine whether an index should be a btree or a bitmap? Anyone even know a good way to test this?

thx,

/jack

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Author: Jack Silvey
  INET: jack_silvey_at_yahoo.com

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